Table of Contents

toc Chapter 3 - Linear Systems

3-1 Graphing Systems of Equations

3-2 Solving Systems Algebraically

3-3 Systems of Inequalities

3-5 Graphs in Three Dimensions

3-6 Systems with Three Variables

Chapter 3 Homework

Chapter 3 Practice Test

Chapter 3 - Linear Systems

3-1 Graphing Systems of Equations

• Graph a system and find the solution
• Know the difference between independent, dependent and inconsistent systems
• Classify systems by observing the slopes.
• Watch this video on Graphing Systems of Equations for extra help

3-2 Solving Systems Algebraically

• Solve systems by substitution
• Solve systems by elimination
• Understand why equations can be multiplied by nonzero numbers to create equivalent equations
• Know how to write equations from scenarios and solve
• Watch this video on Solving systems by elimination for extra help
• Watch this video on Solving Systems by Substitution

3-3 Systems of Inequalities

• Be able to graph two or more inequalities and find the region that contains the solutions
• Know how to write inequalities from scenarios and graph solutions.

3-5 Graphs in Three Dimensions

• Be able to graph points in three dimensions
• Be able to graph equations in three dimensions

3-6 Systems with Three Variables

• Be able to solve a system of equations with three variables using any method
• Watch this video on Solving a three variable system by elimination for extra help
• Watch this other video on Solving a Three-Variable System for more extra help
• 3-6 Extra Practice. Check out this Kuta Worksheets and this one too with the answers attached. See if you can solve them!

Chapter 3 Homework

• p118, 1-9, 13-24
• p126, 1-12 even, 13-17 all, 18-40 even
• p132, 1-8, 18-20, 30-38
• p145, 5-24
• p153, 5, 9, 11, 13, 19-21
• Click here for the slideshow with the chapter's homework answers

Chapter 3 Practice Test

• Click here for a old version of a chapter 3 test for practice
• Click here for the answers to the practice test above